Adjustable Stud Cock Ring

Cheap enough to give a shot, but I found it didn't provide good clamping around the shaft. Which I had hoped the adjustable nature would allow.

As others mention, it's also very rigid which can lead to chaffing.
I found it works better around the scrotum with less chance of the harder edges causing friction.

Fun novelty value having your partner "Tighten you up" as they tease.

I will start with the pros
cheap, easy enough too use and it works well

And for the cons or i should say one con maybe its because of the materiel used or because its so thin it causes considerable discomfort if left on too long and if worn too tightly can leave the area where it was worn feeling sore

but if you are looking for something cheap durable and that does the job well i would recommend this

Nice simple design- does what I wanted. I like that I can adjust the pressure on my penis and I found this easy to use. Just make sure your pubes are trimmed as I found out the hard way what happens when you get them caught!

I bought a bunch of sex toys, and to have that extra staying power, I picked up this wonderful adjustable cock ring. I can use it all the time, everywhere, in bed or even in the tub. I like to use it in water because I clean it up right away once I finish. Plus it's just fun to have sex in the water. I use it to masturbate and I use it with a partner. This is a great, fun cock ring. This cock ring is the best one I've ever used because it's adjustable. Most cock rings are too small for my dick, and I don't like being squeezed too hard. This cock ring slides on and I set it to any tension that I like. Sometimes I want it very tight and other times I want it a bit less snug, but not loose. This cock ring also doesn't come lose as I use it, which is important. It's a great sex toy.